Water-meter.



C. KRIEG.

I WATER METER.

APPLICATION FILED JAN.24. I916.

Patented Nov. 6, 191?.

3 SHEETSSHEET 2 INVENTOR.

WITNESS W i 7 ORNEYS I C.'KRIEG.

WATER METER.

APPLICATION FILED 1AN.24.|9I6.

Patented Nov. 6, 1917.

3 SHEETSSHEET 3.

I l/VVEA/TOR v I ,1 V 47, J ATTORNEYS WITNESS UNITED STATES PATENTOFFICE.

CONRAD KRIEG, F BROOKLYN, NEW YORK, ASSIGNOR TO NEPTUNE METER comm,

OF NEW YORK, N. Y., A COBPORATION OF NEW JERSEY.

WATER-METER.

Specification of Letters Patent.

Patented Nov. 6, 191 7.

Application filed January 24, 1916. Serial No. 78,819.

- zen of the United States, and residing in the borough of Brooklyn ofthe city of New York, county'of Kings, in the State of New York, haveinvented certain new and useful Improvements in Water-Meters, of whichthe following is a specification, reference being had to theaccompanying drawings, forming a part hereof.

This invention relates to water-meters which present a high-dutystraight-flow unobstructed passage from inlet to dutlet, with a valve toclose the same under conditions of normal flow, a low-duty passage frominlet to outlet, with a valve to close the same under conditions ofhigh-duty flow, a proportional metering device for high-duty flow at oneside of the path of straight-flow, and a separate metering device forlow-duty flow. The object of the invention is generally to I improve theconstruction and operation of such meters, with a view to securingaccuracy of registration under all conditions of use. One special objectof the invention is to provide means whereby, under high-dutyconditions, the flow through the proportional metering device shall beinduced by the main flow, thereby securing a truer proportion under allconditions than when means are provided near the inlet to deflectthrough the proportional metering device a portion of the total flow.Another object of the invention is to provide means whereby aninstantaneous opening and an instantaneous closing of the high-dutyvalve shall be assured, so that there shall be less opportunity foruncertain registration by the proportional meter than when the high-dutyvalve opens gradually. Still another object of the invention is toimprove the means whereby the high-duty valve, in its opening andclosing movements, is caused to close and open the low-duty valve. Theinvention will be more fully explained hereinafter with reference to theaccompanying drawings, in which it is illustrated as embodied in anapproved structure and in which,

Figure 1 is a view partly in longitudinal section and partly inelevation of a meter which embodies the invention, the plane of sectionthrough the low-duty metering device being more remote from the eye thanthe plane of section through the high-duty metering device.

Fig. 2 is a view of the samepartly in horizontal section on differentplanes.

Flg. 3 is a detail view in elevation as seen from the left hand in Fig.1, but on a larger scale, showing particularly the means for supportingand operating the high-duty valve and the means whereby the movement ofthe high-duty valve actuates the low-duty valve.

Fig. 4 is a detail view in elevation, as seen from the right hand inFig. 3, but on a still larger scale, showing particularly the device foractuating the low-duty valve.

The casing a, having an inlet 6 and an outlet c, is shown as having atransverse wall a which is provided with a high-duty orifice a in astraight line with the inlet and the outlet and of substantially thesame area, and with a low-duty orifice a at one side of the straightflow path. The wall a forms on one side an inlet chamber a and on theother side a discharge chamber a. A cylindrical shell a is carried fromthe wall a toward the inlet and the wall of the shell'is continued fromthe forward end of the cylindrical portion to the inlet withports a anda for the proportional flow and low-duty flow respectively. Thecylindrical shell a is provided on one side with a port a whichpreferably extends throughout" the length of the cylindrical portion andpermits the proportional flow, which, under high-duty conditions, passesthrough the proportional metering device a, of ordinary construction, toenter the space within the cylindrical shell a throughout its length. Asleevelike nozzle, consisting preferably of two relatively adjustableparts a and a, which may be threaded together, as clearly shown in Fig.2, is supported within the cylindrical shell a and terminates a shortdistance in front of the high-duty orifice o The external diam- L eterof the nozzle a, a" is less than the internal diameter of thecylindrical sleeve (1 so that there is formed around the sleevelikenozzle an annularchamber (1 into which the water from the proportionalmeter passes throughout its length and from which it passes in anannular envelop around the ter minal end of the nozzle a, a and thence,with the main flow through such nozzle, into the orifice a and thedischarge chamber a The structure constitutes a sort of jetpump oraspirator so that the main flow through the nozzle a a, under high-dutyconditions, when the high-duty valve is open, acts upon thesurroundingenvelop of water, which communicates with the inlet through theproportional metering device a, and induces a flow which will he alwaysin proportion to the main flow. The aspirating action may be variedsomewhat by varying the distance between the end of the nozzle a, a" andthe orifice a and for this purpose the section a is made adjustable withrespect to the section a as shown in Fig. 2.

A flap valve or deflector a may he pivoted at the inlet end of thenozzle, as shown in Fig. 1, out it is relied upon rather to reduceslightly the flow through the nozale and therefore increase slightly thevelocity of such flow, so as to increase the aspirating action, than todeflect any part of the flow through the proportional meter,

For the purpose of preventing corrosion of the interior of the sleeve a,since such corrosion would afi'ect the flow through the annular space, alining a, of non-corrodible metal, such as copper, is. provided for thesleeve and, being divided throug'iout its length in registration withthe port a, may he held in place by spring-rings a at its ends,

Secured to the wall a and having an opening to register accurately withthe orifice a is a casting 05 supporting and formins; a seat for thehigh-duty valve which is opened by such high pressure diderential as maybe caused by the opening of a fire hydrant, and closes when conditionsof normal flow are restored To secure accuracy of registration it isvery desirable that the opening and closing of the valve f beinstantaneous, that is, that the opening or the closing, as the case mayhe, shall he uniform all around the perimeter of the valve and shall notbegin at one part of the perimeter and be followed through the remainderof the perimeter, The valve is closed and is held normally closed by theaction of a weight through suitahle intermediate connections, it isfound that when the pres sure of the weight is exercised one side of thevalve, as is usually the case, the open ing of the valve begins at thepart of the perimeter remote from the point of pres sure of the weightand that the closing hegms at that part of the perimeter nearest thepoint oi pressure. One ObjBCi? of the invention is therefore to enablethe pres sure of the weight to he exerted central against the valve, sothat shell 4 n 13 m 4. tendency to open or close nrst part or eas esanother of the perimeter. The valve 7, being suitably shaped, asheretofore, to permit simultaneous opening at all points of theperimeter, notwithstanding its swingpendent, rigid frame 9 is also hungat two points on the extremities of the shaft f as,

at g, and is provided with a bearing plate 9 for cooperation with acentral stu f on the rear face of the valve f. A roller 9 is mounted inthe frame, at one side of the valve, to cooperate with the usual cam-arm7a which is secured to one end of the shaft k, mounted in bearings d onthe lower end of the frame or casting d. (in the other end of the shafth is secured the weighted arm d which, through the pressure of thecamarm it against the roller 9 holds the valve 7 to its seat undernormal conditions of flow. Under abnormal conditions of flow, when thepressure difierential is increased above the normal, the pressure of thewater against the valve 7 forces the valve in the direction of flowagainst the resistance of the weight which is transmitted through thecam=arm h and frame g to the valve at its central point. lhe valvetherefore leaves its seat at all points of its perimeter simultaneouslyand there is no tendency to open at one part of the perimeter earlierthan at another,

Under normal conditions of flow the water flows from the inlet chamber athrough the port a the low-duty metering device 8, the port a and thehood or casing it to the discharge chamber a. The floor of the casing khas an orifice is in which is mounted a butterfly valve 12 This valve isopen when the high-duty valve f is closed, and is closed when thehigh-duty valve is open. It is desirable that the low-duty valve beclosed before the high-duty valve is actually opened in order that thefull pressure of the water may then he exerted upon the high-duty valveto open it, and that the low-duty valve is opened before the completeclosing of the high-duty valve in order to relieve the high duty valveof pres sure and permit it to close quickly. The movement of the highduty valve f is caused, through the movement of the camarm it, to openand close the low-duty valve as the case may he. in order that open ingand closing the low duty valve may be properly timed with respect to"opening and closing of the high duty valve, the

followings improved devices twherehy the movement of the cemerm it ismade to actuate the valve Fe are provided: The valve is is mounted on ashaft it which has hearin the sides of the @n the end of the whichcarries a pin is to engage one or another of two stops k to limit theswinging movement of the shaft and therefore of the valve 70 in its openor its closed position. The hub of the Weighted arm 'k also has two lugsis and k Mounted loosely on the shaft is the U-shaped tr1p lever is",the bridge of which is adapted to engage one or the other of the lugs 70le while the lower part of the lever is adapted to be engaged by a stud70 on the camarm h. With the parts in the position shown in Fig. 1 itwill be seen that in the movement of the arm h with the opening of thevalve 7 the stud in the beginning of its movement, engages the triplever k", causing it to swing on the shaft 10 and that the trip leverimmediately engages the lug k and rocks the shaft 70 causing theweighted arm 70 to pass from one side to the other of the Vertical linethrough the axis, so that the weighted arm completes the closingmovement of the valve 70 and holds it closed while the valve 7 is open.The valve 10 is thus closed before the valve f actually opens. Duringthe closing movement of the valve f the stud 70 which passes beyond thefreely swinging trip lever [0 1n its opening movement engages the triplever on the other side in its closing movement and, before the valve fis completely closed, moves the trip lever k 'against the lug In andtherefore rocks the shaft to open the valve 73 carrying the weighted arm10* from one side to the other of the vertical line through the axis, sothat the weighted arm completes quickly theopening movement of the valveand holds it open while the valve f is closed.

The mode of operation of the improved meter as a whole will be readilyunderstood without further explanation. It will also be understood thatvarious changes in details of construction and arrangement may be madewithout departing from the spirit of the invention.

I claim as my invention:

1. The combination of a meter casing having an inlet chamber, adischarge chamber and a transverse wall with an orifice therethrough, acylindrical extension from said wall registering with said orifice andhaving a longitudinal port in one side thereof, a sleevelike nozzlewithin said cylindrical extension, smaller in diameter than saidextension and terminating short of the wall, an annular chamber beingformed about said nozzle and communicating with said orifice, and aproportional metering device between the inlet chamber and the port ofthe cylindrical extension.

2. The combination of a meter casing having an inlet chamber, adischarge chamber and a transverse wall with an orifice therethrough, avalve to close said orifice, a cying an inlet chamber, a dischargechamber and a transverse wall with an orifice therethrough, a valve toclose said orifice, a lowduty metering device interposed between theinlet chamber and the discharge chamher, a valve to control the passageof water through the low-duty metering device, a cylindri'cal extensionfrom said wall registering with said orifice and having a longitudinalport in one side'thereof, a sleevelike nozzle within said cylindricalextension, smaller in diameter than said extension and terminating shortof the wall, an annular chamber being formed about said nozzle andcommunicating with said orifice, and a proportional metering devicebetween the inlet chamber and the port of the cylindrical extension.

4. The combination of a meter casing having an inlet chamber, adischarge chamber and a transverse wall with an orifice therethrough, acylindrical extension from said wall registering with. said orifice andhaving a longitudinal port in one side thereof, a sleevelike nozzlewithin said cylindrical extension, smaller in diameter than saidextension and terminating short of the wall, an annular chamber beingformed about said nozzle and communicating with said orifice, saidsleevelike nozzle being adjustable in length to vary the distancebetween its end and said wall, and a proportional metering devicebetween the inlet chamber and the port of the cylindrical extension.

5. The combination of a meter casing having a transverse wall with anorifice therethrough, a swinging valve hung by a wide arm to controlsaidorifice and having a central boss, a swinging frame hung from twowidely separated points on the same axis with the valve and bearingagainst its central boss, a roller mounted on said frame at one sidethereof, a lever bearing against said roller, and a weighted armconnected with said lever to cause it to bear against said roller.

6. The combination of a meter casing having a transverse wall with anorifice therethrough, a frame secured to said wall and having an openingto register with said orifice, a shaft mounted in bearings in said frameabove the opening, a valve hung from said shaft to control said orificeand having &

a central boss, a frame hung from said shaft at its ends and bearinagainst the central boss of the valve, a re ler mounted in said frame atone side thereof, a lever bearing against said roller, and a weightedarm connected to said lever to cause the same to bear against saidroller.

7. The combination of a meter casing having an inlet chamber, adischarge chamber and a transverse wall with a high-duty orifice and alow-duty orifice therethrough, a valve to control said high-dutyorifice, an arm moving with said valve in its opening and closingmovements, a valve to control the low-duty orifice, a Weighted armmoving with said valve and having two project- 'ing lugs, and a triplever swinging loosely on the same axis with the valve, engaged by saidarm in its openlng and closing movements, and engaging one or the otherof weaves said in c as it is moved by said am to rock the va vea 8 Thecombination of a meter casing having an inlet chamber, a dischargechamber, and a transverse wall with a hi h-duty orifice and a low-dutyorifice theret rough, a valve to control said high-duty orifice, an armmovingwith said va ve in its opening and closing movements, a butterflyvalve to control the low-duty orifice, a shaft on which the valve ismounted, a weighted.- arm .fixed to said shaft and having two projectinglugs, and a trip lever mounted loosely on said shaft engaged by said armin its opening and closing movements and engaging one or the other ofsaid lugs as it 1s moved by said arm to rock the valve shaft.

This snecification signed this 22d day of January, A; D. 1916.

CONRAD KRKEG.

